Lineman s vise



(No Model.)

J. MGISAAG.

LINEMAN'S VISE.

No. 464,034. Patented Dec. 1, 1891.

U ITED STATES PATENT OFFICE.

J PHN MOISAAO, OF MALDEN, MASSACHUSETTS.

LINEMANS vise.

SPECIFICATION forming part of Letters Patent No. 464,034, dated December 1, 1891.

Application filed July 6, 1891. SerialNo. 398,507. (No model.)

To all whom it may concern:

Be it known that 1, JOHN MCISAAO, of Malden,-in the county of Middlesex, State of Massachusetts, have invented certain new and useful Improvements in Linemens Vises, of which the following is a description sufficientlyfull, clear, and exact to enable any person skilled in the art or science to which said invention appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a plan view of my improved linemans vise, the tension-strap being broken off. Fig. 2 is an end elevation of the same; Fig. 3, a vertical longitudinal section, and Fig. 4 an inside plan view, of the lower jaw.

Like letters and figures of reference indicate corresponding parts in the different figures of the drawings.

My invention relates, especially, to Vises which are particularly adapted for use in stretching and repairing electrical conducting-wires; and it consistsin certain novel features hereinafter fully set forth and claimed,

- the object being to produce a simpler, cheaper,

and more effective device of this character than is now in ordinary use.

The nature and operation of the improvement will be readily understood by all conversant with such matters from the following explanation.

In the drawings, A represents the body of the Vise, which consists of a metallic frame having a central longitudinally-arranged opening I) and a head B at one end, which forms one jaw of the vise.

Journaled horizontally in the opening b, near the end opposite the jaw B, there is a friction-roll (Z, and at the end of the body, adjacent said roll, there is a bar 28. A strap 0 has one end secured to the bar 28.

A clamp D is pivoted between the sides f of the body A and has a segmental serrated head g, which engages the roll d. The opposite end of the clamp D is cam-shaped at h. A flat spring 1' is disposed between two transverse pins jj in said body, one end thereof bearing against the cam end it of the clamp o D the ur ose of said s rin bein to retain 7 P P s e wire 15 tautly.

said shoe in position when in engagement with the roll d or when thrown upward, as shown by dotted lines in Fig.

The jaw B has two laterally-projecting lips 70 771 and a longitudinally-projecting lip p arranged centrally between the lips k and m. The lower jaw H has similarly-arranged lips 76' m p, and projecting centrally from said jaw there is a screw-bolt q, having-a square shank r, which is fitted to slide in a suitable rectangular opening t in the jaw 13. A nuto is turned onto the threaded portion of said bolt. Said nut is provided with elongated ears to to receive a lever whereby it may be set up tightly on the bolt. The opposite end of the spring '5 is disposed between the jaws and tends to throw the jaw H outward, as shown in Fig. 3. The inner faces of the jawlips m m and p p are serrated, as shown in Fig. 4, while the faces of the jaws k 70 are smooth, said smooth jaws being particularly adapted for use with soft-copper and similar wires. cessed or cut at a: into planes parallel with the corresponding faces of the companion lips 7c m, a space thus being left between said lips p p when the companion lips are in engagement.

In the use of my improvement the strap 0 is passed around a pin 30 on the wire pole or supporting frame. The broken end 15 of the wire is disposed between the lips 70 7c of the clamp-jaws B H and the nut 11 is turned onto the bolt q, clamping said wire securely between said lips. The strap 0 is then passed around the roll d and drawn, stretching the The clamp D serves to retain the take-up by clamping the strap against the roll d in the usual manner. The opposite end 16 of the wire is then passed between the lips 70 k, the outer ends of said lips being separated sufficiently to receive said wire after the wire 15 is clamped therein on account of the slight play permitted the bolt-shank r by the size of the bolt-opening t, as shown at 17. The end of the wire 16 is then wound at 18 onto the wire 15, as shown in Fig. 1, forming one-half of the connection. detached from. the holder-pin, the nut 11 is turned off sufficiently to permit the clamp to The strap being The inner faces of the lips p p are rebe removed from the wires, the spring ziseparating the jaws as soon as released by the nut. The connection 18 is then passed between the lips 19 p, which, being separated farther than the companion lip described, readily receives said joint, as shown in Fig.

-2, Without the necessity of turning the nut :5 I claim is 1. In alinemans vise, a body provided with a roll for the tension-strap and a clampingjaw formed integral with said body, said j aw being provided with laterally and longitudinally projecting lips, in combination with a movablej aw provided with similarly-arranged lips and adapted to slide in said body-jaw and a nut for securing said jaws together, substantially as described.

' 2. In a linemans vise, a fixed and a movable jaw having laterally-projecting lips and iongitudinally-proj ecting lips having their inner faces cut away to form an opening when the laterallips are in contact, substantially as and for the purpose set forth.

In a linemans vise, a fixed and movable jaw provided at opposite sides with laterallyprojecting lips, respectively smooth and serrated, and with longitudinally-projecting recessed lips, substantially as and for the purpose set forth.

4. In a linemans vise, the body A, provided with the integral jaw B, having the lateral lip 7c and longitudinal lip 19, in combination with the jaw 11, having the shank 0' fitted to slide in the body-jaw and the smooth lip 70 and serrated lip 19' registering with the body-lips, and mechanism for adjusting the movable jaw, substantially as described.

5. In a linemans vise, a body providedwith a fixed and movable jaw having laterally-proj ectin g lips, :in combination with ad usting' mechanism forsaid movable jawaan attaclring-strap, a friction-roll therefor;apivoted-w clamp engaging said roll,and a spring itensioning said clampiand spreading said jaws;

substantially as desbribed; a J OHN MOISAAC; 1

Witnesses:

K. DURFEE, O. M. SHAXV, 

